Water gliderWater glider

Name:Adam RemešName:Adam Remeš

Class:VIII.AClass:VIII.A

RequirementsRequirements

PET bottle (1,5l)PET bottle (1,5l) 2 PET bottles (0,5l)2 PET bottles (0,5l) Eletric engineEletric engine Battery (4,5V)Battery (4,5V) LeverLever PropellerPropeller WiresWires

DesignDesign

In a large bottle we cut a hole to place the little In a large bottle we cut a hole to place the little engine.engine.

Fix the propeller and eletric engine connect to Fix the propeller and eletric engine connect to the battery switch stuck in the PET bottlethe battery switch stuck in the PET bottle

The large bottle is mounted to the side 2 small The large bottle is mounted to the side 2 small PET bottles.PET bottles.

Using the standard markers, ballpoint pen ...Using the standard markers, ballpoint pen ... Lay the glider on the surface of the water tank Lay the glider on the surface of the water tank

and turn on the switch.and turn on the switch. The glider moves on the surfaceThe glider moves on the surface

Physical explanationPhysical explanation

The glider is moving with the assistance of The glider is moving with the assistance of a propeller.a propeller.

The propeller is driven by engine.The propeller is driven by engine. The spinning propeller pushes air which is The spinning propeller pushes air which is

moving the glider. moving the glider.

(water)

Two small bottles

One big bottle

Propeller

Battery

Wires